Darwin-Streaming-Server/APICommonCode/QTSS3GPPModuleUtils.cpp

128 lines
4.5 KiB
C++

/*
*
* @APPLE_LICENSE_HEADER_START@
*
* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*
*/
/*
File: QTSS3GPPModuleUtils.cpp
Contains: Implements utility routines defined in QTSS3GPPModuleUtils.h.
*/
#include "QTSS3GPPModuleUtils.h"
#include "QTSSModuleUtils.h"
#include "QTSS_Private.h"
#include "StrPtrLen.h"
#include "OSArrayObjectDeleter.h"
#include "OSMemory.h"
#include "MyAssert.h"
#include "StringFormatter.h"
#include "ResizeableStringFormatter.h"
#include "StringParser.h"
#include "SafeStdLib.h"
QTSS_TextMessagesObject QTSS3GPPModuleUtils::sMessages = NULL;
QTSS_ServerObject QTSS3GPPModuleUtils::sServer = NULL;
QTSS_PrefsObject QTSS3GPPModuleUtils::sServerPrefs = NULL;
QTSS_StreamRef QTSS3GPPModuleUtils::sErrorLog = NULL;
StrPtrLen QTSS3GPPModuleUtils::s3gppBitRateAdaptationSDPStr("a=3GPP-Adaptation-Support:");
const char* k3gppRateAdaptationReportFreqPrefName = "3gpp_protocol_rate_adaptation_report_frequency";
Bool16 QTSS3GPPModuleUtils::s3gppEnabled = false;
Bool16 QTSS3GPPModuleUtils::s3gppRateAdaptationEnabled = false;
UInt16 QTSS3GPPModuleUtils::s3gppRateAdaptationReportFrequency = 1;
void QTSS3GPPModuleUtils::Initialize(QTSS_Initialize_Params* initParams)
{
if (NULL == initParams)
return;
sServer = initParams->inServer;
sServerPrefs = initParams->inPrefs;
sMessages = initParams->inMessages;
sErrorLog = initParams->inErrorLogStream;
}
void QTSS3GPPModuleUtils::ValidatePrefs()
{
// min and max values per 3gpp rel-6 A26234 5.3.3.5
if (s3gppRateAdaptationReportFrequency < 1 || s3gppRateAdaptationReportFrequency > 9)
QTSSModuleUtils::LogPrefErrorStr( qtssWarningVerbosity, (char*) k3gppRateAdaptationReportFreqPrefName, "has an invalid value: valid range is [1..9]");
if (s3gppRateAdaptationReportFrequency < 1)
s3gppRateAdaptationReportFrequency = 1;
if (s3gppRateAdaptationReportFrequency > 9)
s3gppRateAdaptationReportFrequency = 9;
}
void QTSS3GPPModuleUtils::ReadPrefs()
{
const Bool16 kDefaultEnable = true;
const UInt16 kDefaultReportFreq = 1;
QTSSModuleUtils::GetAttribute(sServerPrefs,"enable_3gpp_protocol", qtssAttrDataTypeBool16,
&s3gppEnabled,(void *)&kDefaultEnable, sizeof(s3gppEnabled));
QTSSModuleUtils::GetAttribute(sServerPrefs,"enable_3gpp_protocol_rate_adaptation", qtssAttrDataTypeBool16,
&s3gppRateAdaptationEnabled,(void *)&kDefaultEnable, sizeof(s3gppRateAdaptationEnabled));
QTSSModuleUtils::GetAttribute(sServerPrefs, (char *) k3gppRateAdaptationReportFreqPrefName, qtssAttrDataTypeUInt16,
&s3gppRateAdaptationReportFrequency,(void *)&kDefaultReportFreq, sizeof(s3gppRateAdaptationReportFrequency));
QTSS3GPPModuleUtils::ValidatePrefs();
}
SDPContainer* QTSS3GPPModuleUtils::Get3GPPSDPFeatureListCopy(ResizeableStringFormatter &buffer)
{
SDPContainer* resultList = NEW SDPContainer;
StrPtrLen theLinePtr;
if (s3gppEnabled)
{
if (s3gppRateAdaptationEnabled)
{
buffer.Put(s3gppBitRateAdaptationSDPStr);
buffer.Put((SInt32) s3gppRateAdaptationReportFrequency);
buffer.PutEOL();
theLinePtr.Set(buffer.GetBufPtr(),buffer.GetBytesWritten());
resultList->AddHeaderLine(&theLinePtr);
buffer.Reset();
}
}
return resultList;
}